---
sourceDocument: Xanadu ServiceNow AI Platform user interface
sourceDocumentLink: https://www.servicenow.com/docs/r/xanadu/platform-user-interface

 Release :

    - xanadu

ft:locale :

    - en-US

ft:publication_title :

    - Xanadu ServiceNow AI Platform user interface

ft:clusterId :

    - platux

bundleId :

    - platux

workflow :

    - Platform


---

# Activating CSS theme support

# Activating CSS theme support {#ariaid-title1}

* Release version: Xanadu
* 
* Updated August 1, 2024
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

There are different plugins that activate CSS themes support.
Activate the following plugins to use themes, based on the version of the UI you use.

Core UI: CSS Theme support See [Activate a plugin](https://www.servicenow.com/docs/access?context=t_ActivateAPlugin&version=xanadu&pubname=xanadu-platform-administration&ft:locale=en-US).
**Related tasks**   

* [Create or customize a theme](https://www.servicenow.com/docs/l2t~9trF0mK342qG7DYA6Q "You can create themes or customize existing themes.")  
**Related reference**   

* [Default CSS styles](https://www.servicenow.com/docs/P6~_t3ekImRu3zXmjUqpKA "You can use CSS styles to control the appearance of elements in a theme.")